April 2015
Intermediate to advanced
556 pages
17h 47m
English
book
Cocoa Programming for OS X: The Big Nerd Ranch Guide
by Aaron Hillegass, Adam Preble, Nate Chandler
Content preview from Cocoa Programming for OS X: The Big Nerd Ranch Guide
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Creating Layout Constraints Programmatically
You have seen how constraints can be created in Interface Builder, but they can also be added programmatically using the NSLayoutConstraint class. Above, you created the constraint pinning the left side of the scroll view the standard distance from the left side of its superview, the window’s content view, using the Add New Constraints popover in IB. You would create an equivalent constraint programmatically like this:
let scrollView: NSScrollView = ... let superview = scrollView.superview! let constraint = NSLayoutConstraint(item: scrollView, attribute: .Leading, relatedBy: .Equal, toItem: superview, attribute: .Leading, multiplier: 1.0, constant: 20.0) superview.addConstraint(constraint) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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